Type-writing machine.



J. PELBELQ TYPE WRITING MAGHINE. APPLIOATIOR IILED OUT. 5, 1908.

921,213. Patented May 11, 1909. 4 8HEETSSHEET 1.

x1 q-E.

WITNEEEIEEI: INVENTEIR WITNEEEEE:

J. FELBEL.

TYPE WRITING MACHINE. APPLICATION FILED OUT. 5, 1909.

921 ,21 3 Patented May 11, 1909.

Hams-SHEET 2.

INVENTUR THE "cums PETZRS ca., WASHINGTON. n. c.

J. PELBEL. TYPE Wm'rme MACHINE. APPLICATION FILED OUT. 5, 1908.

Patented May 11, 1909.

4 SHEETS-SHEET 8.

INVENTEIR Mil/4V6,

J. FELBEL. TYPE WRITING MACHINE. APPLIOATION FILED OUT. 5, 190B.

Patented May 11, 1909.

4 SHEETS-SHEET 4.

INVE

WITNESSES:

v c. THE NORRIS PETERS cu.. WASHINGTON, n

iinrran entree PATENT @FFKQE.

JACOB FELBEL, OF NEW YORK, N. Y., ASSIGNOR TO UNION TYPEWR-ITER COMPANY, OF JERSEY CITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TYPE-WRITING- I/IAGHINE.

Specification of Letters Patent.

Patented May 11, 1909.

Application filed October 5, 1908. Serial No. 456,236.

New York, have invented certain new and l useful Improvements in Type-Writing Machines, of which the following is a specification.

My invention relates to typewriting machines and more particularly to stop devices for-arresting the platen at predetermined points in its rotation, the mechanism being devised more especially condensed records in billing though of course it may be used for other kinds of work.

The main object of the invention is to provide simple and efficient means of the character specified.

A further object of the invention is to provide a construction which may be readily applied to existing typewriting machines.

To the above and other ends. which will hereinafter appear, my invention consists in the features of construction, arrangements of parts and combinations of devices hereinafter described and particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corre sponding parts in the various views, Figure 1 is an end elevation, partly in section, on an enlarged scale of a part of a typewriting machine embodying my invention. Fig. 2 is an enlarged plan view of the same, showing in addition the parts which are sectioned away in Fig. 1. Fig. 3 is an enlarged fragmentary front elevation, with parts in section, of a portion of the carriage equipped with devices embodying my invention. Fig. is a fragmentary end elevation, partly in section. showing some of the parts illustrated in the preceding figures. Fig. 5 is an enlarged detail sectional view of the rotative stop carrier and the wheel to which it is connected. Fig. 6 is an enlarged detail fragmentary sectional view showing the clutch members and some of their associated parts. Fig. 7 is an enlarged detail perspective view of one of the clutch members. Fig. 8 is an enlarged detail perspective view of another of the clutch members.

In the present instance I have shown my for use in preparing invention embodied in a Monarch typewriting machine to which it is readily applicable without materially modifying the regular structure of said machine.

The top plate 1 supports standards 2 to which fixed guide rails 3 are secured by screws f. The rails 3 are oppositely grooved and contain anti-friction balls or rollers 5 5 which also run in opposite grooves 6 formed in a rear cross bar or traverse bar 7 constituting part of the paper carriage. Projecting forwardly from the rear bar 7 are end i bars 8, these several bars forming in the 1 main the platen frame or carriage.

A cylindrical rotative platen 9 is secured to a platen shaft 10 by a set screw 11 which enters a threaded hole in the hub of the right-hand platen head 12 and bears against the platen shaft. The platen shaft extends through and is journaled in bearing openings in the end plates 8 and is provided at its ends with finger wheels 13 and 1e secured to the platen shaft in the usual manner. The left-hand platen head is formed With line spacing ratchet teeth 15 with which a spring pressed roller detent 16 cooperates; A line spacing pawl 17 pivoted to and carried by an arm 18 co-acts with the line spacing wheel under control of a finger piece 19 to effect a stepby-step line spacing movement of the platen. The right-hand end plate 8 of the carriage is formed with an upwardly extending arm 20 provided with a finger piece 21 by which the carriage may be moved to the right and by which it may be controlled when released from its spring drum for rapid movement toward the left.

The parts thus far described are of the usual construction embodied in the Monarch typewriting machine and further de scription thereof is deemed unnecessary.

The right-hand end of the platen shaft 1 10, where it extends beyond the platen frame, is formed with a spline groove 22 in which a spline 23 moves (Fig. 6). The spline 23 is secured to a clutch member 24: which surrounds the platen shaft and is provided with a peripheral groove 25. The clutch member comprises an inwardly extending annul lar flange 26 and a single engaging or clutch tooth 27 (Fig. 8) which is arranged radially 1 within the annular flange. The clutch mem- 1 her 24; also has an inwardly projecting hub for sleeve 28 which surrounds the platen shaft and is itself surrounded by a coiled l expansion spring :29 that bears at one end against the clutch member 2a and at its opposite end against the companion clutch member 30. The clutch section or member 30 is formed with an annular flange 31 provided with outwardly radiating extending teeth 32 (Fig. 9) which are adapted to cooperate with the clutch tooth 27 on the member 2st. The teeth 32 are preferably thirtythree in number, corresponding to the number of teeth of the line spacing ratchet wheel. The purpose of this is to enable the clutch sections to be brought into proper position to engage one another no matter what position the platen may be arrested in. The annular flange 31 surrounds the coiled spring 29 and is itself surrounded by the annular flange 26 of the clutch section 21. The clutch member 30 is provided with an inwardly extending hub 33 which is loosely mounted on the platen shaft and to said hub is rigidly connected a sprocket band, or chainwheel 3a which constitutes a driving wheel mounted concentrically with the platen and adapted to rotate in unison with the platen, as will hereinafter more clearly appear. This wheel may be secured by a drive fit, or by a set screw or otherwise to the clutch member 30. From an inspection of Figs. 2 and at it will be observed that a bracket 35 is secured to the bottom of the right-hand end plate 8 of the platen frame by screws 36. A lever 37 is pivoted on a shouldered screw 38 to the outer end of the bracket. The form of this lever is best shown in Fig. 4; from which it will be seen that it is provided with a semicylindrical or yoke-like portion 39 contained within the circumferential groove 25 in the clutch section 2-1.. This lever is provided with studs 40 and L1 which are situated upon opposite sides of the axis of the platen and are of a thickness or diameter corresponding substantially to the width of the groove 25. The lever is prolonged at the upper portion thereof so as to provide a forwardly extending finger piece 42 by which it may be turned on its pivot 33 to shift the clutch section 2% into and out of engagement with the companion clutch section 30. A leaf spring 3 is secured by screws at to the right-hand end plate of the carriage and extends beneath the lever 37. Two depressions or notches and to are formed in this spring for engagement with the lever in either of the two positions to which the latter may be shifted; that is to say, in the position where an engagement is effected between the two clutch members or to the position where the clutch members are disengaged. The purpose of this spring is to hold the hand lever and the parts controlled thereby against accidental displacement so as to maintain the clutch members either in or out of engagement depending on the position to which the lever 37 is moved, but if desired, some other holding means may be employed. When the lever is in engagement with the inner notch 46 the pressure of the spring is sufficient to overcome the tension of the spring 29, the purpose of the latter spring being more particularly to assure disengagement between the clutch members when the finger piece 42 is moved to the right to be engaged with the notch 4:5.

In other words, the pressure exerted by the spring 29 is sufficient to prevent the clutch section 30 from movlng along the platen shaft to the right with the clutch section 2&

when the latter is moved to the right to disengage it from the companion clutch section. The movement of the clutch section 30 to the left is prevented by the hub 33 thereof bearing against a collar or sleeve at? (see Fig. 2) which forms part of the journal bearing in the right-hand end plate of the carriage for the platen shaft.

An endless rectilinearly-traveling flexible band or sprocket chain i8 cooperates with the sprocket wheel 3% and also cooperates with a sprocket wheel 49 pivoted or journaled on a headed shouldered screw 50 and received at its threaded end in a tapped opening in the right-hand end plate 8 of the carriage (see Fig. 5). A. rotative stop carrier 51 is secured to the sprocket or band wheel 49 by screws so as to turn concentrically with said wheel, although if desired the rotative stop carrier and sprocket wheel may be formed as one part. The rotative stop carrier is provided near its rim with a. series of circularly arranged apertures in which a pin 5st- (Fig. 2) is adapted to en-.

gage. This pin is formed as a part of a knurled finger piece 55 which is carried by a spring arm 56 pivotally mounted on the barrel of the screw 50. The spring arm constitutes a carrier for the pin 5st and at the same time tends to hold the pin in engagement with the hole in which is is seated. The arm 56 extends beyond the periphery of the rotative stop carrier to form a stop 57 as shown in Figs. 1 and 2.. In order to adjust the stop 57 it is merely necessary by a lateral movement of the arm 56 to withdraw the pin 5% from the opening in which it is seated and then turn the spring arm 56 concentrically with but independently of the stop carrier and sprocket wheel 49 until the stop has been rotated to the proper or desired position with reference to the rotative carrier, and then release the finger piece when the pressure of the spring arm will force the pin 54- into that hole with which the pin may then register, thus locking the stop to rotate with the carrier. The rotative stop carrier is also formed or provided with a fixed or integral stop 58 which projects beyond the perimeter of the carrier as shown in Fig. 1. A third, fixed stop 59 is in the nature of a pin which is secured to and projects outwardly from the right hand end plate of the carriage and extends into the paths of the two rotative stops 57 and 58.

From the foregoing it will be understood that the rotative stops 57 and 58 are separate from the sprocket chain although they are constantly operatively connected therewith to be rotated thereb It will also be understood that when the clutch members are enga 'ed with each other, as when the lever 57 is in the position shown in Fig. 2, the sprocket wheel 3% will be positively connected to rotate with the platen and through the band and wheel 49 to positively turn the rotative stops; and that when either of said rotative, relatively adjustable stops contacts with the fixed stop 59 the platen will be arested. The adjustable stop 57 is brought into engagement with the fixed stop 59 to arrest the forward revolution of the platen while the rotative stop 58 is brought into-engagement with the fixed stop 59 to arrest the platen during its backward rotation. In the present instance the construction is such as to provide for a full revolution of the platen when the stop 57 has been adjusted to register with the stop 58 and in most instances this revolution of the platen is sufficient to accommodate the machine for the bill heads employed. It is sometimes necessary, however, by reason of the depth of the heading of the bill, to provide for more than a single revolution of the platen before arresting it by the stops. The construction is such that this may be accomplished if desired by substituting a smaller sprocket wheel 34 with an appropriate chain. Of course, the construction may be thus made in the first instance to obtain more than a complete revolution of the platen in order to take invoice sheets with headings of the maximum length. The stop 57 is adapted for proper adjustment whether the platen is turned more than a full revolution or less before being arrested by said stop.

In order to use my invention for condensed record work the lever 37 is shifted to the position shown in Fig. 2 in order to engage the clutch devices and thus positively connect the rotative stops with the platen through the band and band wheel. The platen is then given a rearward rotation through either of the finger wheels 13 or let until the stop 58 engages the stationary stop 59 to arrest the platen. An invoice or bill sheet is then introduced into the machine and the platen is given a forward rotation until the first line, usually the date line, is brought to the printing line. The adjustable stop 57, as seen in Fig. 1, is then adjusted in the direction of movement of the l l l 1 hands of a clock until said stop is brought into contact with the stationary stop 59. The stop 57 is engaged in this position with the carrier 51. This effects a setting of the stops for the particular bill heads then in use. The platen is then given a reverse rotation by either of the finger wheels 13 or 14; until the platen is arrested by the contact of the stop 58 with the fixed stop 59. The carbon and record sheets may then be introduced into the machine, the record sheet being next to the platen and the carbon sheets being interposed between the invoice and record sheets. The platen may then be turned forwardly by either of the finger wheels 13 and 1% until it is arrested by the engagement of the stop 57 with the fixed stop 59. The finger piece 42 or lever 37 should then be moved to the right to release the clutch and the operator may then proceed with the writing, the platen at this time being adapted to turn indefinitely independently of the stops, chain and sprocket wheels.

After the bill has been completed the opera-- tor may line space twice in order to provide for proper spacing bet-ween the last line of the copy of the invoice just completed on the record sheet and the first line of the next manifold copy of the invoice to be written. The finger piece 42 should then be moved to the left to efiect an engagement of the clutch members, and the platen should be rotated rearwardly by means of either of the finger wheels 13 and 14 until the stop 58 has been brought into engagement with the fixed stop 59 and the platen is arrested. The invoice sheet may be then removed without disturbing the carbon and record sheets and a new invoice sheet may be introduced into the machine in a manner well known. The platen should then be turned forwardly until arrested by the contact of the stop 57 with the fixed stop 59. The clutch should then be released and the writing proceeded with as before. In this manner carbon copies of successive bills or invoices may be made upon the record sheet so that a large number of copies of different bills or other matter may be made in condensed form or in close arrangement on a single record sheet.

In some cases it may not be necessary to use both of the stops 57, 58 if it be desired to stop the platen in only one direction of its revolution. F or example, if it be desired to stop the platen when it is turned backwardly, then the stop 57 may be omitted, in which case the extent to which the platen is to be turned forwardly will be determined visually by the operator.

Various changes may be made without departing from the spirit and scope of my invention.

Certain features of the present invention are claimed broadly in my application Serial No. 127,91 1 the claims in the present case being restricted to features not disclosed in said earlier application. Certain other features of the present invention are also claimed broadly in my co-pending application Serial No. 470,618, the claims in the present case being restricted to features not disclosed in said application Serial No. 470,618.

What I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination with a rotative platen, a band which is moved with the platen, stops separate from said band but certain of which stops are moved by the band, and means for operatively connecting the band with the platen and for disconnecting it therefrom to cause the band to travel as the platen rotates or to allow the platen to turn independently of said band.

2. In a typewriting machine, the combination of a rotative platen, a band which is moved with the platen, stops separate from said band but certain of which stops are moved by the band, means for affording a relative adjustment between certain of said stops, and hand actuated means operable at will for enabling the platen to rotate independently of said band.

3. In a typewriting machine, the combination of a rotative platen, a platen frame, a band, operative connections between the platen and band to cause the platen and the band to move together, stops for arresting the platen, certaln of said stops being stationary on the platen frame and certain of said stops being separate from but adapted to be moved by said band, means for affording a relative adjustment between certain of said stops, and means for enabling the platen to turn independently of said band and stops.

4. In a typewriting machine, the combination of a rotative platen, a platen frame, a band, stops for arresting the platen, one of said stops being fixed to the platen frame and two other of said stops being relatively adjustable and separate from but adapted to be moved by said band, and hand actuated means operable at will for operatively connecting said band and platen to move together.

5. In a typewriting machine, the combination of a rotative platen, a band adapted to be moved in unison with the rotative movement of the platen, stops for arresting the platen, certain of said stops being separate from but rotative by said band, and means whereby the platen may be rotated independently of said band.

6. In a typewriting machine, the combination of a rotative platen, stops for arresting the platen, certain of said stops being separate from but rotative by a band, and a hand actuated means operable at will for operatively connecting or disconnecting the platen and band whereby the band may be moved as the platen is rotated or the platen nay be rotated independently of the band.

7. In a typewriting machine, the combination of a rotative platen, a band adapted to be moved as the platen is rotated, stops for arresting the platen, certain of said stops being separate from but rotative by said band, means for effecting a relative adjustment in certain of said stops, and a hand actuated clutch operable at will for opera tively connecting the platen and said band.

In a typewriting machine, the combina tion of a rotative platen, a driving wheel adapted to be turned with the platen, a driven wheel, a band for transmitting rotative movement from the driving to the driven wheel, stops for arresting the platen, certain of said stops being moved by the driven wheel, and means for operatively connecting at will the platen and said driving wheel.

9. In a typewriting machine, the combination of a rotative platen, a driving wheel adapted to be turned with the platen, a driven wheel, a band for transmitting a rotative movement from the driving to the driven wheel, stops for arresting the platen, certain of said stops being moved by the driven wheel, and a hand actuated clutch operable at will for efiecting an operative connection between the platen and said driving wheel.

10. In a typewriting machine, the combination of a rotative platen, a driving sprocket wheel which is adapted to be turned with the platen, a driven sprocket Wheel, a sprocket chain cooperating with said sprocket wheels, stops for arresting the platen, a rotative stop carrier carrying certain of said stops, said stop carrier being rotated by said sprocket chain and wheels, and hand actuated means operable at will for operatively connecting the sprocket wheels and platen to move together.

11. In a typewriting machine, the combination of a rotative platen, a platen shaft, a platen frame, a fixed stop on the platen frame, a rotative stop carrier, two relatively adjustable stops carried by said stop carrier and cooperative with said first mentioned stop to arrest the platen, a wheel on the platen shaft, and adapted to be driven by said wheel and cooperative with said rotatire carrier to turn it, and hand actuated means operable at will for effecting an operative connection and disconnection between said wheel and the platen shaft.

12. In a typewriting machine, the combination of a rotative platen, a platen frame, stops for arresting the platen, a driving sprocket wheel concentric with the platen, a driven sprocket wheel, an endless sprocket chain cooperative with said wheels, a rotative stop carrier fixed to said driven wheel, means for effecting a relative adjustment between certain of said stops, and hand actuated means operable at will for efiecting an operative connection between said driving wheel and the platen to cause them to rotate together or for enabling the platen to rotate independently of the driving wheel and the parts controlled thereby.

13. In a typewriting machine, the combination of a rotative platen, a platen shaft, a platen frame, a sprocket wheel loosely mounted on the platen shaft, a second sprocket wheel mounted on the platen frame, an endless sprocket chain cooperative with said sprocket wheels, a rotative stop carrier mounted concentrically and fixed to rotate with said second sprocket wheel, a clutch for connecting or disconnecting at will the first mentioned sprocket wheel and the platen shaft, and stops for arresting the rotation of the platen, certain of said stops being relatively adjustable, certain of them being car ried by the platen frame and certain of them being mounted on the rotative carrier.

14. In a typewriting machine, the com bination of a rotative platen, a platen shaft, a platen frame, a sprocket wheel loosely mounted on the platen shaft, a second sprocket wheel mounted on the platen frame, an endless sprocket chain cooperating with said sprocket wheels, a rotative carrier mounted concentrically with said second sprocket wheel and fixed to rotate therewith, a clutch for connecting or disconnecting at will said sprocket wheels and chain with the platen shaft, and stops for arresting the rotation of the platen, two of said stops being relatively adjustable on said rotative stop carrier and the third of said stops being fixed to the platen frame.

15. In a typewriting machine, the combination of a rotative platen, a platen shaft, a platen frame, a sprocket wheel loosely mounted on the platen shaft, a second sprocket wheel mounted on the platen frame, an endless sprocket chain, a rotative stop carrier mounted concentrically with said second sprocket wheel and fixed to rotate therewith, a clutch for connecting or disconnecting at will said first mentioned sprocket wheel and the platen, a stop fixed to the platen frame, a second stop fixed to the rotative carrier, a third stop mounted concentrically with the rotative carrier, and rotatively adjustable relatively thereto, and means for securing said third stop in its adjusted position on said carrier.

16. In a typewriting machine, the combination of a rotative platen, a pair of band wheels, a movable band connecting said wheels, a stop carrier connected to turn with one of said wheels, a stop on said carrier, a fixed stop, and means for connecting said band wheels, band and stop carrier with the platen and for disconnecting them therefrom at will.

17 In a typewriting machine, the combination of a rotative platen, a pair of band wheels, a traveling band connecting said wheels, a stop carrier provided with a stop attached to one of said band wheels, a fixed stop, said band wheels, band, and stop carrier being always connected together, and a clutch mechanism for connecting them with the platen or for disconnecting them therefrom at will.

Signed at the borough of Manhattan, city of-New York, in the county of New York, and State of New York, this 17th day of September, A. D. 1908.

JACOB FELBEL.

Witnesses:

E. M. WELLs, CHARLES E. SMITH. 

